Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/132909
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dc.contributor.authorBadalov, Alexey-
dc.contributor.authorCalvo Gómez, Míriam-
dc.contributor.authorGarrido Beltrán, Lluís-
dc.contributor.authorGascón Fora, David-
dc.contributor.authorGraciani Díaz, Ricardo-
dc.contributor.authorGraugés Pous, Eugeni-
dc.contributor.authorMarin Benito, Carla-
dc.contributor.authorPicatoste Olloqui, Eduardo-
dc.contributor.authorRives Molina, Vicente José-
dc.contributor.authorRuiz, Hugo (Ruiz Pérez)-
dc.contributor.authorVilasis-Cardona, Xavier-
dc.contributor.authorLHCb Collaboration-
dc.date.accessioned2019-05-09T09:24:51Z-
dc.date.available2019-05-09T09:24:51Z-
dc.date.issued2015-09-08-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/2445/132909-
dc.description.abstractTop quark production in the forward region in proton-proton collisions is observed for the first time. The W + b final state with W → μ ν is reconstructed using muons with a transverse momentum, p T , larger than 25 GeV in the pseudorapidity range 2.0 < η < 4.5 . The b jets are required to have 50 < p T < 100     GeV and 2.2 < η < 4.2 , while the transverse component of the sum of the muon and b -jet momenta must satisfy p T > 20     GeV . The results are based on data corresponding to integrated luminosities of 1.0 and 2.0     fb − 1 collected at center-of-mass energies of 7 and 8 TeV by LHCb. The inclusive top quark production cross sections in the fiducial region are σ ( top ) [ 7     TeV ] = 239 ± 53 ( stat ) ± 33 ( syst ) ± 24 ( theory )     fb , σ ( top ) [ 8     TeV ] = 289 ± 43 ( stat ) ± 40 ( syst ) ± 29 ( theory )     fb . These results, along with the observed differential yields and charge asymmetries, are in agreement with next-to-leading order standard model predictions.-
dc.format.extent10 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherAmerican Physical Society-
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.115.112001-
dc.relation.ispartofPhysical Review Letters, 2015, vol. 115, num. 11, p. 112001-
dc.relation.urihttps://doi.org/10.1103/PhysRevLett.115.112001-
dc.rightscc by (c) CERN; LHCb Collaboration, 2015-
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/-
dc.subject.classificationFísica de partícules-
dc.subject.classificationExperiments-
dc.subject.otherParticle physics-
dc.subject.otherExperiments-
dc.titleFirst Observation of Top Quark Production in the Forward Region-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec656770-
dc.date.updated2019-05-09T09:24:51Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Electrònica)

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